发明名称 |
PROCESS FOR PRODUCING A CURVED SUBSTRATE COVERED WITH A FILM |
摘要 |
A process for producing a curved substrate (20) covered with a film (10) comprises a heat treatment of the film performed between a step of preforming said film and a step of assembling the film with the substrate. A maximum temperature of the pre-assembling heat treatment is higher than another maximum temperature of a post-assembling heat treatment (F) which is performed after the assembling step. Then the assembly of the substrate (20) with the film (10) is not altered during said post-assembling heat treatment. In particular, no defect and no delamination appear, and no change in the curved shape of the substrate is caused by the post-assembling heat treatment, even if the substrate (20) has a low glass transition temperature. |
申请公布号 |
PT2512777(E) |
申请公布日期 |
2014.04.29 |
申请号 |
PT20090795852T |
申请日期 |
2009.12.14 |
申请人 |
ESSILOR INTERNATIONAL (COMPAGNIE GÉNÉRALE D`OPTIQUE) |
发明人 |
THIMOTHY E. HEROD;MARGIE HENDRICKSON;ROBERT J. RIST |
分类号 |
B29C51/00;B29C63/22;B29D11/00;B32B38/18 |
主分类号 |
B29C51/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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